Photoelectric conversion device and optical fiber coupling connector

Abstract

A photoelectric conversion device includes a circuit board, light-emitting modules arranged on the circuit board in a first straight line, light-receiving modules arranged on the circuit board in a second straight line, and an optical coupling module. The optical coupling module includes a first optical surface, a second optical surface perpendicular to the first optical surface, a reflecting surface obliquely relative to the first and second optical surfaces, first converging lenses arranged on the first optical surface in a third straight line, second converging lenses arranged on the first optical surface in a fourth straight line, third converging lenses arranged on the second optical surface in a fifth straight line, and fourth converging lenses arranged on the second optical surface in a sixth straight line. The first to six straight lines are substantially parallel to each other.

What is claimed is: 
     
       1. A photoelectric conversion device comprising:
 a circuit board; 
 a plurality of light-emitting modules arranged on the circuit board in a first straight line and spaced apart from each other; 
 a plurality of light-receiving modules arranged on the circuit board in a second straight line and spaced apart from each other; and 
 an optical coupling module comprising a first optical surface, a second optical surface perpendicular to the first optical surface, a reflecting surface obliquely relative to the first optical surface and the second optical surface, a plurality of first converging lenses arranged on the first optical surface in a third straight line, a plurality of second converging lenses arranged on the first optical surface in a fourth straight line, a plurality of third converging lenses arranged on the second optical surface in a fifth straight line, and a plurality of fourth converging lenses arranged on the second optical surface in a sixth straight line, the first straight line, the second straight line, the third straight line, the fourth straight line, the fifth straight line, and the sixth straight line being substantially parallel to each other, the first converging lenses aligned with the light-emitting modules and corresponding to the third converging lenses, the second converging lenses aligned with the light-receiving modules and corresponding to the fourth converging lenses, the reflecting surface configured for reflecting light beams from the first converging lenses toward the corresponding third converging lenses and for reflecting light beams from the fourth converging lenses toward the second converging lenses. 
 
     
     
       2. The photoelectric conversion device as claimed in  claim 1 , wherein the first straight line entirely overlaps the second straight line along a direction perpendicular to the first straight line, the third straight line entirely overlaps the fourth straight line along a direction perpendicular to the third straight line, and the fifth straight line entirely overlaps the sixth straight line along a direction perpendicular to the fifth straight line. 
     
     
       3. The photoelectric conversion device as claimed in  claim 2 , wherein the optical coupling module further comprises a body portion, the body portion comprises a top surface, a bottom surface opposite to and parallel to the top surface, a front surface, and a back surface opposite to and parallel to the front surface, the front surface and the back surface are interconnected between the top surface and the bottom surface, the top surface defines a top recess, the reflecting surface is positioned at the bottom of the top recess, the bottom surface defines a bottom recess, the first optical surface is positioned at the bottom of the bottom recess, the front surface defines a front recess, and the second optical surface is positioned at the bottom of the front recess. 
     
     
       4. The photoelectric conversion device as claimed in  claim 3 , wherein an included angle between a main plane of the first optical surface and a main plane of the reflecting surface is about 45 degrees, and an included angle between a main plane of the second optical surface and a main plane of the reflecting surface is about 45 degrees. 
     
     
       5. The photoelectric conversion device as claimed in  claim 3 , wherein the body portion further comprises a first side surface and a second side surface in the top recess, the first side surface is opposite to the second side surface, the first side surface is perpendicularly connected to the top surface, the second side surface is perpendicularly connected to the top surface, and the reflecting surface is obliquely interconnected between the first side surface and the second side surface. 
     
     
       6. The photoelectric conversion device as claimed in  claim 5 , further comprising a support extending from the bottom surface and surrounding the bottom recess. 
     
     
       7. The photoelectric conversion device as claimed in  claim 5 , further comprising two locating posts extending from the front surface, wherein the front recess is located between the two locating posts. 
     
     
       8. An optical fiber coupling connector comprising:
 a photoelectric conversion device comprising:
 a circuit board; 
 a plurality of light-emitting modules arranged on the circuit board in a first straight line and spaced apart from each other; 
 a plurality of light-receiving modules arranged on the circuit board in a second straight line and spaced apart from each other; and 
 an optical coupling module comprising a first optical surface, a second optical surface perpendicular to the first optical surface, a reflecting surface obliquely relative to the first optical surface and the second optical surface, a plurality of first converging lenses arranged on the first optical surface in a third straight line, a plurality of second converging lenses arranged on the first optical surface in a fourth straight line, a plurality of third converging lenses arranged on the second optical surface in a fifth straight line, and a plurality of fourth converging lenses arranged on the second optical surface in a sixth straight line, the first straight line, the second straight line, the third straight line, the fourth straight line, the fifth straight line, and the sixth straight line being substantially parallel to each other, the first converging lenses aligned with the light-emitting modules and corresponding to the third converging lenses, the second converging lenses aligned with the light-receiving modules and corresponding to the fourth converging lenses, the reflecting surface configured for reflecting light beams from the first converging lenses toward the corresponding third converging lenses and for reflecting light beams from the fourth converging lenses toward the second converging lenses; and 
 
 an optical fiber assembly comprising a plurality of first optical fibers and a plurality of second optical fibers, the first optical fibers aligned with the respective third converging lenses, and the second optical fibers aligned with the respective fourth converging lenses. 
 
     
     
       9. The optical fiber coupling connector as claimed in  claim 8 , wherein the first straight line entirely overlaps the second straight line along a direction perpendicular to the first straight line, the third straight line entirely overlaps the fourth straight line along a direction perpendicular to the third straight line, and the fifth straight line entirely overlaps the sixth straight line along a direction perpendicular to the fifth straight line. 
     
     
       10. The optical fiber coupling connector as claimed in  claim 9 , wherein the optical coupling module further comprises a body portion, the body portion comprises a top surface, a bottom surface opposite to and parallel to the top surface, a front surface, and a back surface opposite to and parallel to the front surface, the front surface and the back surface are interconnected between the top surface and the bottom surface, the top surface defines a top recess, the reflecting surface is positioned at the bottom of the top recess, the bottom surface defines a bottom recess, the first optical surface is positioned at the bottom of the bottom recess, the front surface defines a front recess, and the second optical surface is positioned at the bottom of the front recess. 
     
     
       11. The optical fiber coupling connector as claimed in  claim 10 , wherein an included angle between a main plane of the first optical surface and a main plane of the reflecting surface is about 45 degrees, and an included angle between a main plane of the second optical surface and a main plane of the reflecting surface is about 45 degrees. 
     
     
       12. The optical fiber coupling connector as claimed in  claim 10 , wherein the body portion further comprises a first side surface and a second side surface in the top recess, the first side surface is opposite to the second side surface, the first side surface is perpendicularly connected to the top surface, the second side surface is perpendicularly connected to the top surface, and the reflecting surface is obliquely interconnected between the first side surface and the second side surface. 
     
     
       13. The optical fiber coupling connector as claimed in  claim 12 , wherein the photoelectric conversion device further comprises a support extending from the bottom surface and surrounding the bottom recess. 
     
     
       14. The optical fiber coupling connector as claimed in  claim 12 , wherein the photoelectric conversion device further comprises two locating posts extending from the front surface, and the front recess is located between the two locating posts. 
     
     
       15. The optical fiber coupling connector as claimed in  claim 14 , wherein the optical fiber assembly further comprises a main body, a first cover, and a second cover, the main body comprises a first surface and a second surface opposite to the first surface, the first surface defines a first recess, the second surface defines a second recess, the first cover presses the first optical fibers in the first recess, and the second cover presses the second optical fibers in the second recess.